CN-121986245-A - Indoor heat exchanger and air conditioner indoor unit

Abstract

The indoor heat exchanger includes a plate laminate (50, 60), the plate laminate (50, 60) has first plate portions (50A, 60A) and second plate portions (50B, 60B), the first plate portions (50A, 60A) are arranged adjacent to the heat exchange portion (B) on a first direction side, the first plate portions (50A, 60A) have one or more plates (52, 62), the second plate portions (50B, 60B) have one or more plates (52, 62) different in shape from the plates (52, 62) of the first plate portions (50A, 60A), and the second plate portions (50B, 60B) are arranged on a surface of the first plate portions (50A, 60A) opposite to the surface of the heat exchange portion (B), a stepped portion (X) is formed by the first plate portions (50A, 60B) and the second plate portions (50B, 60B) on a peripheral edge portion of the surface of the plate laminate (50, 60) opposite to the surface of the heat exchange portion (B).

Inventors

• My hometown is too beautiful.
• Taro Yamamoto this week

Assignees

• 大金工业株式会社

Dates

Publication Date

20260505

Application Date

20240614

Priority Date

20230929

Claims (12)

1. 1. An indoor heat exchanger characterized by comprising a heat exchange part (B) and plate laminates (50, 60), The heat exchange section (B) includes a plurality of fins (41) and a plurality of heat transfer pipes (42) penetrating the plurality of fins (41), A flow path (51, 61) communicating with the heat transfer pipe (42) is provided inside the laminated body (50, 60), the laminated body (50, 60) is formed by laminating a plurality of plates (52, 62) in a first direction in which the heat transfer pipe (42) extends, The plate laminated body (50, 60) is arranged adjacent to the heat exchange portion (B) at the first direction side, The laminated body (50, 60) has a first plate portion (50A, 60A) and a second plate portion (50B, 60B), the first plate portion (50A, 60A) having more than one of the plates (52, 62), The second plate portion (50B, 60B) has one or more plates (52, 62) different in shape from the plates (52, 62) of the first plate portion (50A, 60A), and the second plate portion (50B, 60B) is arranged on a surface of the first plate portion (50A, 60A) opposite to a surface opposite to the heat exchange portion (B), A stepped portion (X) is formed at the peripheral edge portion of the second surface (502, 602) of the laminated body (50, 60), the second surface (502, 602) is located on the opposite side of the first surface (501, 601) opposite to the heat exchange portion (B), The step (X) is formed by the first plate (50A, 60A) and the second plate (50B, 60B).
2. 2. An air conditioner indoor unit characterized by comprising the indoor heat exchanger, the casing (31), and the first member (300) according to claim 1, The housing (31) houses the indoor heat exchanger, The first component (300) is arranged within the housing (31), At least a part of the first member (300) is arranged to oppose the step (X) on the first direction side.
3. 3. The indoor unit of claim 2, wherein when the laminated body (50, 60) is viewed from the first direction, The first member (300) is disposed at a position closer to the step (X) than the end of the second plate (50B, 60B) constituting the step (X).
4. 4. An indoor unit for an air conditioner according to claim 2, wherein at least a part of the first member (300) is arranged inside the stepped portion (X).
5. 5. The indoor unit of claim 2, further comprising a second component (200) and a separator (100), The second member (200) is adjacent to the indoor heat exchanger (40), the second member (200) is opposite to the step portion (X) on the first direction side, The partition (100) is arranged between the indoor heat exchanger (40) and the second member (200), The separator (100) has a recess (101) formed so as to follow the shape of the step (X).
6. 6. An indoor unit for air conditioning according to any of claims 2 to 5, wherein an air passage (P) is formed in the casing (31), in which air flows from a suction port (33) formed in the casing (31) toward a blow-out port (34), The indoor heat exchanger (40) is disposed in the air passage (P), The step (X) is formed at a position downstream of the plate laminated body (50, 60) with respect to the air flow, as viewed from the first direction.
7. 7. An indoor unit for air conditioning according to any of claims 2 to 6, wherein the laminated body (50, 60) is composed of three or more of the plates (52, 62), The plates (52, 62) of the first plate portions (50A, 60A) closest to the heat exchange portion (B) in the laminated body (50, 60) are set as first end plates (521, 621), The plates (52, 62) of the second plate portion (50B, 60B) farthest from the heat exchange portion (B) in the laminated body (50, 60) are set as second end plates (525, 625), When the plates (52, 62) arranged between the first terminal plates (521, 621) and the second terminal plates (525, 625) are intermediate plates (522 to 524, 622 to 624), The flow paths (51, 61) are formed so as to pass through the intermediate plates (522-524, 622-624), The intermediate plates (522-524, 622-624) have a thicker plate thickness than the first terminal plates (521, 621) and the second terminal plates (525, 625).
8. 8. An indoor unit for air conditioning according to any of claims 2 to 7, wherein at least a part of the first face (501, 601) and the second face (502, 602) of the laminated body (50, 60) is subjected to corrosion-resistant processing.
9. 9. An indoor unit for air conditioning according to any of claims 2 to 8, wherein the area of the portion of the first plate portion (50A, 60A) that does not overlap the second plate portion (50B, 60B) is smaller than the area of the portion of the first plate portion (50A, 60A) that overlaps the second plate portion (50B, 60B) when the laminated body (50, 60) is viewed from the first direction.
10. 10. An indoor unit for air conditioning according to any of claims 2 to 9, wherein the flow path (51, 61) has a first flow path (51A) and a second flow path (51B), The first flow path (51A) is provided in the first plate portion (50A, 60A), The second flow path (51B) is provided across the first plate portion (50A, 60A) and the second plate portion (50B, 60B), The second flow path (51B) is formed so as to intersect with the first flow path (51A).
11. 11. The indoor unit of claim 2 to 10, wherein the flow path (51, 61) has a third flow path (51C), the third flow path (51C) being formed at a portion of the first plate portion (50A, 60A) that does not overlap the second plate portion (50B, 60B) when the laminated body (50, 60) is viewed from the first direction, When the indoor heat exchanger functions as an evaporator, the refrigerant in the overheat region flows through the third flow path (51C), When the indoor heat exchanger functions as a radiator, the refrigerant in the supercooling region flows through the third flow path (51C).
12. 12. An air-conditioning indoor unit according to any one of claims 2 to 11, further comprising a gas pipe (12 a), the gas pipe (12 a) delivering compressed refrigerant gas to the indoor heat exchanger (40), The gas pipe (12 a) is connected to the flow paths (51, 61) formed in the laminated body (50, 60) at the portion where the first plate portion (50A, 60A) and the second plate portion (50B, 60B) overlap.

Description

Indoor heat exchanger and air conditioner indoor unit Technical Field The present disclosure relates to an indoor heat exchanger and an air conditioner indoor unit. Background Patent document 1 discloses a stacked header connected to a heat exchanger. Grooves are formed in each of the plates constituting the stacked header. By stacking a plurality of plates having such grooves, a refrigerant flow path in which the grooves are formed in the stacked header is configured. Prior art literature Patent literature Patent document 1 International publication No. 2014/184917 Disclosure of Invention Technical problem to be solved by the invention The plates constituting the plate laminated body are all formed in the same shape. The shape and position of the grooves formed in the plate are different depending on the structure of the refrigerant flow path. Therefore, the area of the region where the groove is not formed differs depending on the plate. Since the area where the groove is not formed is not used, if the area is relatively large, the space in the air conditioner cannot be effectively utilized accordingly. The purpose of the present disclosure is to provide a laminated body capable of effectively using a space in an air conditioner indoor unit. Technical solution for solving the technical problems The first aspect is an indoor heat exchanger. The indoor heat exchanger includes a heat exchange portion B including a plurality of fins 41 and a plurality of heat transfer tubes 42 penetrating the plurality of fins 41, Flow passages 51, 61 communicating with the heat transfer tubes 42 are provided in the plate laminated bodies 50, 60, the plate laminated bodies 50, 60 are formed by laminating a plurality of plates 52, 62 in a first direction in which the heat transfer tubes 42 extend, The plate stacks 50, 60 are arranged adjacent to the heat exchanging portion B at the first direction side, The plate laminated bodies 50, 60 have first plate portions 50A, 60A and second plate portions 50B, 60B, the first plate portions 50A, 60A having one or more of the plates 52, 62, The second plate portions 50B, 60B have one or more plates 52, 62 having a shape different from that of the plates 52, 62 of the first plate portions 50A, 60A, and the second plate portions 50B, 60B are arranged on the opposite side of the surface of the first plate portions 50A, 60A from the surface opposite to the heat exchange portion B, A step portion X is formed at the peripheral edge portion of the second surface 502, 602 of the plate laminated body 50, 60, the second surface 502, 602 is located on the opposite side of the first surface 501, 601 opposite to the heat exchanging portion B, The step X is formed by the first plate portions 50A, 60A and the second plate portions 50B, 60B. In the first aspect, by providing the stepped portion X on the laminated sheet 50, 60, a space can be formed at a position opposed to the stepped portion X. By disposing a predetermined member or the like in this space, the space can be effectively utilized. The second aspect is an air conditioning indoor unit. The air conditioning indoor unit includes the indoor heat exchanger of the first aspect, a casing 31 and a first component 300, The cabinet 31 houses the indoor heat exchanger, The first part 300 is arranged within the housing 31, At least a portion of the first member 300 is arranged to oppose the step portion X on the first direction side. In the second aspect, by disposing the first member 300 in a space opposite to the first direction side of the stepped portion X, the total length of the indoor heat exchanger and the first member 300 can be shortened. Thus, the air conditioning indoor unit can be made compact. A third aspect is based on the second aspect, When the plate stacks 50, 60 are viewed from the first direction, The first member 300 is disposed closer to the step portion X than the end portions of the second plate portions 50B, 60B constituting the step portion X. In the third aspect, by disposing the first member 300 in a space below (on the step side of) the end surface of the second plate portion of the step portion X, the air conditioning indoor unit can be made compact as in the second aspect. A fourth aspect is based on the second aspect, At least a portion of the first member 300 is disposed inside the stepped portion X. In the fourth aspect, by disposing at least a part of the first member 300 at the stepped portion X, the air conditioning indoor unit can be made compact as in the second aspect. A fifth aspect is based on the second aspect, The air conditioning indoor unit further includes a second member 200 and a partition plate 100, the second member 200 being adjacent to the indoor heat exchanger 40, the second member 200 being opposite to the stepped portion X at the first direction side, The partition plate 100 is disposed between the indoor heat exchanger 40 and the second member 200, The separator 100 has a concave portion 101 for